Diagnostic Aids

Improper fuel system pressure will contribute to following problems:

• Cranks, but will not run
• Code 44 or 45
• Cutting out or "feels" like ignition problem
• Hesitation, loss of power or fuel economy

Fig 1: Chart A-7 Schematic, Fuel System Pressure Test (Non-Turbo)

Courtesy of ISUZU MOTOR CO.

Fig 2: Chart A-7 Flow Chart, Fuel System (Non-Turbo) (1 of 2)

Courtesy of ISUZU MOTOR CO.

Fig 3: Chart A-7 Flow Chart, Fuel System (Non-Turbo) (1 of 2)

Courtesy of ISUZU MOTOR CO.